The system must prevent the root account from logging in from serial consoles.

Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

The system must prevent the root account from logging in from serial consoles.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-50725	OL6-00-000028	SV-64931r1_rule		Low

Description
Preventing direct root login to serial port interfaces helps ensure accountability for actions taken on the systems using the root account.

STIG	Date
Oracle Linux 6 Security Technical Implementation Guide	2016-12-20

Details

Check Text ( C-53209r1_chk )
To check for serial port entries which permit root login, run the following command: # grep '^ttyS[0-9]' /etc/securetty If any output is returned, then root login over serial ports is permitted. If root login over serial ports is permitted, this is a finding.

Fix Text (F-55521r1_fix)
To restrict root logins on serial ports, ensure lines of this form do not appear in "/etc/securetty": ttyS0 ttyS1 Note: Serial port entries are not limited to those listed above. Any lines starting with "ttyS" followed by numerals should be removed.